xmlobjectstreamunit.java

pastry的java实现的2.0b版

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"FreePastry" Peer-to-Peer Application Development Substrate 

Copyright 2002, Rice University. All rights reserved.

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package rice.p2p.util.testing;

import java.io.*;
import java.lang.reflect.Array;
import java.util.*;
import java.util.zip.*;
import rice.p2p.util.*;

/**
 * DESCRIBE THE CLASS
 *
 * @version $Id: pretty.settings 2305 2005-03-11 20:22:33Z jeffh $
 * @author jeffh
 */
public class XMLObjectStreamUnit {

  /**
   * DESCRIBE THE FIELD
   */
  protected XMLObjectOutputStream xoos;

  /**
   * DESCRIBE THE FIELD
   */
  protected XMLObjectInputStream xois;

  /**
   * DESCRIBE THE FIELD
   */
  protected ByteArrayOutputStream baos;

  /**
   * DESCRIBE THE FIELD
   */
  protected ByteArrayInputStream bais;

  /**
   * Constructor for XMLObjectStreamUnit.
   *
   * @exception IOException DESCRIBE THE EXCEPTION
   */
  public XMLObjectStreamUnit() throws IOException {
    reset();
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @exception IOException DESCRIBE THE EXCEPTION
   */
  protected void reset() throws IOException {
    baos = new ByteArrayOutputStream();
    //   xoos = new XMLObjectOutputStream(new GZIPOutputStream(new BufferedOutputStream(baos)));
    xoos = new XMLObjectOutputStream(new BufferedOutputStream(baos));
    bais = null;
    xois = null;
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @exception IOException DESCRIBE THE EXCEPTION
   */
  protected void flip() throws IOException {
    xoos.close();
    bais = new ByteArrayInputStream(baos.toByteArray());
    //   xois = new XMLObjectInputStreamm(new GZIPInputStream(bais));
    xois = new XMLObjectInputStream(bais);
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testInt(int i) {
    try {
      xoos.writeInt(i);
      flip();
      int j = xois.readInt();
      reset();

      if (i != j) {
        throw new IOException("int " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param b DESCRIBE THE PARAMETER
   */
  protected void testBoolean(boolean b) {
    try {
      xoos.writeBoolean(b);
      flip();
      boolean c = xois.readBoolean();
      String xml = new String(baos.toByteArray());
      reset();

      if (b != c) {
        throw new IOException("boolean " + c + " was not equal to " + b + ". XML: " + xml);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testByte(byte i) {
    try {
      xoos.writeByte(i);
      flip();
      byte j = xois.readByte();
      reset();

      if (i != j) {
        throw new IOException("byte " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testChar(char i) {
    try {
      xoos.writeChar(i);
      flip();
      char j = xois.readChar();
      reset();

      if (i != j) {
        throw new IOException("char " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testDouble(double i) {
    try {
      xoos.writeDouble(i);
      flip();
      double j = xois.readDouble();
      reset();

      if (i != j) {
        throw new IOException("double " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testFloat(float i) {
    try {
      xoos.writeFloat(i);
      flip();
      float j = xois.readFloat();
      reset();

      if (i != j) {
        throw new IOException("float " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testLong(long i) {
    try {
      xoos.writeLong(i);
      flip();
      long j = xois.readLong();
      reset();

      if (i != j) {
        throw new IOException("long " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   *
   * @param i DESCRIBE THE PARAMETER
   */
  protected void testShort(short i) {
    try {
      xoos.writeShort(i);
      flip();
      short j = xois.readShort();
      reset();

      if (i != j) {
        throw new IOException("short " + j + " was not equal to " + i);
      }
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   */
  protected void testMultiplePrimitives() {
    try {
      int i = -1029;
      double d = 2939.22;
      long l = 1929029389303L;

      xoos.writeInt(i);
      xoos.writeDouble(d);
      xoos.writeLong(l);
      flip();
      if ((xois.readInt() != i) || (xois.readDouble() != d) || (xois.readLong() != l)) {
        throw new IOException("Multiple primitives were not read correctly!");
      }

      reset();
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * DESCRIBE THE METHOD
   *
   * @param o1 DESCRIBE THE PARAMETER
   * @param o2 DESCRIBE THE PARAMETER
   * @return DESCRIBE THE RETURN VALUE
   */
  protected boolean compare(Object o1, Object o2) {
    if (o1.equals(o2)) {
      return true;
    }

//    System.out.println("comparing: "+o1.getClass()+": "+o1+" "+o2.getClass()+" "+o2);

    if (o1.getClass().isArray() && o2.getClass().isArray() &&
      o1.getClass().getComponentType().equals(o2.getClass().getComponentType())) {
      if (Array.getLength(o1) != Array.getLength(o2)) {
        return false;
      }
      if (o2.getClass().getComponentType().isPrimitive()) {
        Class c = o2.getClass().getComponentType();
        if (c.equals(Integer.TYPE)) {
          return Arrays.equals((int[]) o1, (int[]) o2);
        } else if (c.equals(Boolean.TYPE)) {
          return Arrays.equals((boolean[]) o1, (boolean[]) o2);
        } else if (c.equals(Byte.TYPE)) {
          return Arrays.equals((byte[]) o1, (byte[]) o2);
        } else if (c.equals(Character.TYPE)) {
          return Arrays.equals((char[]) o1, (char[]) o2);
        } else if (c.equals(Double.TYPE)) {
          return Arrays.equals((double[]) o1, (double[]) o2);
        } else if (c.equals(Float.TYPE)) {
          return Arrays.equals((float[]) o1, (float[]) o2);
        } else if (c.equals(Long.TYPE)) {
          return Arrays.equals((long[]) o1, (long[]) o2);
        } else if (c == Short.TYPE) {
          return Arrays.equals((short[]) o1, (short[]) o2);
        } else {
          throw new IllegalArgumentException("Class " + c + " is not primitive!");
        }
      } else {
        for (int i = 0; i < Array.getLength(o1); i++) {
          if (!compare(Array.get(o1, i), Array.get(o2, i))) {
            return false;
          }
        }
        return true;
      }
    }

    return false;
  }

  /**
   * A unit test for JUnit
   *
   * @param o DESCRIBE THE PARAMETER
   */
  protected void test(Object o) {
    try {
      long start = System.currentTimeMillis();
      xoos.writeObject(o);
      flip();
      long mid = System.currentTimeMillis();
      Object o2 = xois.readObject();
      long end = System.currentTimeMillis();

      System.out.println("WRITE: " + (mid - start) + " READ: " + (end - mid));

      if (o == o2) {
        throw new IOException("Returned object is identicial to first!");
      }

      if (!compare(o, o2)) {
        System.out.println("XML IS: " + (new String(baos.toByteArray())));
        throw new IOException("Object " + o2 + " was not equal to " + o);
      }

      reset();
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    } catch (ClassNotFoundException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit
   */
  protected void testHashtable() {
    try {
      Hashtable table = new Hashtable();
      Integer i = new Integer(1020);
      table.put("monkey", i);
      table.put("cat", i);
      table.put(i, i);

      xoos.writeObject(table);
      flip();
      Hashtable table2 = (Hashtable) xois.readObject();

      if (table == table2) {
        throw new IOException("Returned table is identicial to first!");
      }

      if (!(table.equals(table2))) {
        throw new IOException("Object " + table2 + " was not equal to " + table);
      }

      if (!(table2.get("monkey") == table2.get("cat"))) {
        throw new IOException("Object " + table2.get("monkey") + " was not equal to " + table2.get("cat"));
      }

      reset();
    } catch (IOException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    } catch (ClassNotFoundException e) {
      System.out.println("test produced exception " + e);
      e.printStackTrace();
    }
  }

  /**
   * A unit test for JUnit